./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/oomInt_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/oomInt_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7532be101c0c78d98d9bbd24e7e5d146886dd016 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:21:01,943 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:21:01,944 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:21:01,952 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:21:01,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:21:01,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:21:01,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:21:01,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:21:01,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:21:01,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:21:01,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:21:01,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:21:01,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:21:01,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:21:01,961 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:21:01,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:21:01,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:21:01,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:21:01,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:21:01,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:21:01,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:21:01,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:21:01,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:21:01,971 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:21:01,971 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:21:01,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:21:01,972 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:21:01,973 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:21:01,974 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:21:01,975 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:21:01,975 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:21:01,976 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:21:01,976 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:21:01,976 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:21:01,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:21:01,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:21:01,978 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 10:21:01,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:21:01,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:21:01,989 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:21:01,990 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:21:01,990 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:21:01,991 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:21:01,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:21:01,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:21:01,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:21:01,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:21:01,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:21:01,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:21:01,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:21:01,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:21:01,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:21:01,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:21:01,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:21:01,995 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7532be101c0c78d98d9bbd24e7e5d146886dd016 [2018-11-10 10:21:02,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:21:02,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:21:02,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:21:02,028 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:21:02,028 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:21:02,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/oomInt_true-termination.c_true-unreach-call.i [2018-11-10 10:21:02,064 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/data/3bcb6571b/eaddafa1d2cb4d6bb5d09c2abb3fcad7/FLAGd8588185f [2018-11-10 10:21:02,454 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:21:02,454 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/sv-benchmarks/c/ldv-regression/oomInt_true-termination.c_true-unreach-call.i [2018-11-10 10:21:02,459 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/data/3bcb6571b/eaddafa1d2cb4d6bb5d09c2abb3fcad7/FLAGd8588185f [2018-11-10 10:21:02,467 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/data/3bcb6571b/eaddafa1d2cb4d6bb5d09c2abb3fcad7 [2018-11-10 10:21:02,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:21:02,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:21:02,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:21:02,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:21:02,473 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:21:02,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133164ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02, skipping insertion in model container [2018-11-10 10:21:02,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:21:02,492 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:21:02,579 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:21:02,582 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:21:02,590 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:21:02,598 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:21:02,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02 WrapperNode [2018-11-10 10:21:02,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:21:02,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:21:02,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:21:02,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:21:02,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:21:02,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:21:02,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:21:02,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:21:02,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... [2018-11-10 10:21:02,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:21:02,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:21:02,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:21:02,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:21:02,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:21:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:21:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:21:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:21:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:21:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:21:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:21:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2018-11-10 10:21:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2018-11-10 10:21:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2018-11-10 10:21:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2018-11-10 10:21:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 10:21:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 10:21:02,822 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:21:02,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:21:02 BoogieIcfgContainer [2018-11-10 10:21:02,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:21:02,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:21:02,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:21:02,825 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:21:02,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:21:02" (1/3) ... [2018-11-10 10:21:02,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5596f12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:02, skipping insertion in model container [2018-11-10 10:21:02,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:02" (2/3) ... [2018-11-10 10:21:02,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5596f12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:02, skipping insertion in model container [2018-11-10 10:21:02,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:21:02" (3/3) ... [2018-11-10 10:21:02,829 INFO L112 eAbstractionObserver]: Analyzing ICFG oomInt_true-termination.c_true-unreach-call.i [2018-11-10 10:21:02,839 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:21:02,845 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:21:02,857 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:21:02,886 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:21:02,887 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:21:02,887 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:21:02,887 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:21:02,887 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:21:02,887 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:21:02,887 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:21:02,887 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:21:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 10:21:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 10:21:02,909 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:21:02,910 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:21:02,912 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:21:02,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:21:02,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1400799420, now seen corresponding path program 1 times [2018-11-10 10:21:02,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:21:02,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:21:02,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:21:02,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:21:02,960 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:21:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:21:03,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:21:03,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:21:03,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 10:21:03,097 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:21:03,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 10:21:03,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 10:21:03,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 10:21:03,109 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2018-11-10 10:21:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:21:03,198 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-11-10 10:21:03,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:21:03,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-10 10:21:03,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:21:03,205 INFO L225 Difference]: With dead ends: 33 [2018-11-10 10:21:03,206 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:21:03,210 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-10 10:21:03,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:21:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:21:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:21:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:21:03,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-10 10:21:03,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:21:03,229 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:21:03,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 10:21:03,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:21:03,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:21:03,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:21:03,265 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:21:03,265 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:21:03,265 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:21:03,265 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:21:03,265 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:21:03,266 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 33 36) the Hoare annotation is: true [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L428 ceAbstractionStarter]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 24) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L425 ceAbstractionStarter]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2018-11-10 10:21:03,266 INFO L421 ceAbstractionStarter]: At program point L30(line 30) the Hoare annotation is: (<= 3 ~p~0) [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L428 ceAbstractionStarter]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: true [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point L8(lines 8 11) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-10 10:21:03,267 INFO L425 ceAbstractionStarter]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2018-11-10 10:21:03,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:21:03 BoogieIcfgContainer [2018-11-10 10:21:03,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:21:03,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:21:03,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:21:03,270 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:21:03,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:21:02" (3/4) ... [2018-11-10 10:21:03,274 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:21:03,279 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:21:03,279 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:21:03,279 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure abs_int [2018-11-10 10:21:03,279 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure firstFunction [2018-11-10 10:21:03,279 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 10:21:03,282 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-10 10:21:03,282 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 10:21:03,306 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7aa0afc0-af1c-4e03-b821-fd5fdecc866a/bin-2019/utaipan/witness.graphml [2018-11-10 10:21:03,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:21:03,307 INFO L168 Benchmark]: Toolchain (without parser) took 837.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -98.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:21:03,308 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:21:03,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.16 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 10:21:03,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.08 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:21:03,309 INFO L168 Benchmark]: Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:21:03,310 INFO L168 Benchmark]: RCFGBuilder took 190.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:21:03,310 INFO L168 Benchmark]: TraceAbstraction took 446.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:21:03,311 INFO L168 Benchmark]: Witness Printer took 36.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:21:03,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 128.16 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.08 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 190.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 446.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 25 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 17 SDslu, 79 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 10 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...